Hey,
I browsed all the topics here and although many were about IF, it seemed most did a small eating period each day. My fiance and I do the alternate day fasting, so we generally go about 30-36 hours on a fast. We have been doing it for about 2 weeks now and are finally starting to not think as much about when we can eat again .

Anyway, my question was whether or not we should be doing the simplefit workout plan on a fasting day or eating day. I would think that it would be better to do it on the eating day, when we are taking in nutrients, but would honestly prefer to do it on a fasting day, since I seem to have more energy then.

Thanks, and this looks like a great site. I'm excited to get back into shape.

welcome to SF sara.
if you think the site is great, try the workout routine - it's even better LOL!!!!
as for your question - i'm no dietician, so i suppose my advice won't count for much, but if you want my 2 cents worth, i'd say train on which ever day you feel comfortable with.
train for 2 weeks on your "fasting" day, and the next 2 weeks on your "eating" day and compare how you feel - unless there's a more scientific answer to your question.